There is a problem with the thyroid, I think, that causes people to grow at greater heights. Like, 7'+.nutshell said:I vote yes.
I believe the world was in a different state pre-flood that allowed for long lifespans. Nature was different.
What about the giants mentioned in the Bible? Did they really exist?
As to the first question: I don't think so. I don't think that I would want to live that long, either. Flood changed it or not (to me not), that's a REALLY long time to live.